Means for testing gas-meters



R. L. DEZENDORF.

MEANS FOR'TESTING GAS METERS.

APPLICATION msn Nov. 9. 191s. REN'EwED JAN. 3.1919.

1,806,659. Patented June 1o, 1919.

2 SHEETS-SHEET I R. L. DEZENDORF.

MEANS FOR TESTING GAS METERS. APlLlcATloN FILED Nov.9,191e. REnEwEn JAN.3,1919.

Ptent-ed June 10,` 1919.

2 SHEETS-SHEET 2- UNITED sTATEs PATENT OFFICE.

RICHARD LEE DEZENDORF, 0F RICHMOND HILL, NEW YORK.

MEANS FOR TIIEIS'IINGI' GAS-METERS,

Specicaton of Letters Patent. PatentedJl'lne 10, 1919.

Application med November 9, 191e, serial No. 1970,318. Renewed January3, i919'. serial iro. 269,547.

To all whom t may concern.' Y l Be it known that I, RICHARD L. DEZEN-Dont, a citizenof the United' States, residing at Richmond Hill, in thecounty of Queens, State of New York, have invented certain new anduseful Improvements in Means for Testing Gas-Meters, of which thefollowing is a full, clear, and exact description.

My invention relates to'improvements in means for testing gas meters-andhas for its object to provide a new and improved gas meter testingmeans. It further has forits object to provide a means for testingmeters of either small or large capacity, whichV means can be dividedinto units that can be easily carried about. v

The following is a description of 4an ernbodiment of my invention,reference being had to the accompanying drawings, in which- Y i l lFigure 1 shows my apparatus with the fronts of the measuring devicesremoved;

Fig. 1a is a detailvof a Hag; c Fig. 2 shows a section of the same withthe fronts in place; Fig. 3 shows a modication of the device; Fig. 4;shows a plan view of the indicating means of the device of Fig. 3;

Fig. 5 shows one of the blue flame burners used in connection with myapparatus ;v and Fig. 6 shows an end view of the burner.

Referring more particularly to the draw-V ings, 1 1 are two separablemeasuring devices, the same consisting of as tight casings, each havingtherein a fleXl-ble wall consisting of a disk 2 and bellows 3 secured tosaid disk and to the rear wall of the casing. To each disk is pivotallyconnected a flag 4 which is rigidly connected to a flag wire 5. Theupper flag wire 5 is separably connected to the lower flag wire 5 by an'angular alinin'g projection and socket 5', whereby the angular positionof the two flag wires is always maintained the same and the flexiblewalls. are caused to begink and end their movements simultaneously. Tothe upperV connected with the' pipe Q ,"said pipe l having a separablecoupling 1 0; The chambers outside the flexible -walls are provided withports 11, which are connected toa pipe 12, also provided with aseparable coupling 13. The pipe 9 enters a four-wayv couplin 14 tovwhichleads a supply pipe' 15 provided charge pipes 17 and 18 providedwithcocks 19 and 20 respectively and terminating in blue iame burners 21 and22, thef'burner 21 being of large capacity.' Y The' ,burner 22 is ofsmall capacity and constitutes a small load upon the vmeter tobetested.l In -a similar manner, the pipe 12 enters a four- Way coupling23Y to which leads a pipe 24e having a'stop cock-25 'and from which leaddischarge pipes 26 'and 27 provided with stop cocks 28 and 29 and termifnating respectively in blue flame burners 30 and 31, 30 being a largeburnerand '31 a,v

with a stop cock 16, and from-which lead dissupply In operatingmyabove-describedV` appal ratus to test a meter a sita, the supply pipe32 is first connected to the discharge of the meter to be tested. Thecocks 16, 28`and 29 are then closed and the cocks 19,V 20 and 25 areopened. The cock 33 is then'open'ed withv the result that gas flows intothe outside chamber in each of the testing f units, causing theindicatorhand 6 to move toward one of the initial positions. When it has nearlyreached Vone of those positions, the cock 19' is closed and theremainder of the traverse completed, withthe cock 20, -which isdischarging a small load, open. When the traverse is completed,` thecock 2O vis closed. ThisV places the indicator ofthe testing-'apparatusin'proper relation for the test. The cocks 16` 28 and v29- are" thenopened and gasv ispermitted tov'pass' from the meter directly throughthe'cock 25,`to the-burners 30 and 31 until thev first or test hand uponthe indicating dialof the meter to Vbe tested has nearlyj reached one ofits graduation marks,whereupon the cock 28 is closed and the meter to betested is permitted to` run under a small load `until ythe firstindicating hand coincides with the-gradual running slow and-vicever-sai.

for the beginning 0f the actual test. Under these circumstances, thecocks Q8 and' 29 are opened and the coelis 1143 and their 33 are opened.Where-upon the gas flows into the interior chambers of the testing"units and gas is discharged from the exterior cha-inbers ofthe testingunitsthrough the burners 30 andrlhis condition isinaintained until theindicator' fi hasitra'versed about threefou-rtl-is-o-f itstraif'ersewhereupon the cock 28- is closedso-Yas-to cut off the-large burner andtherreniainder ofiy the traverse is; corn-L pleted with gas. dischargingthrough the small-.burner 31". When the traverse-'is-conlpleted, thecoc-ks 29- and-l are closed; Whe-re.- up'on the cocks 25, 19.Y and 20areopened, with; the result that gas entersy the exterior chamber.through ports. 1l and discharges frm-n. the interior chambers to theports: S andv burners 21 and 22, and the indicator hand 6y nio-ves in-ythe opposite:v direction. Vllhen th-isindicator hand, has completedabout threefourths ofz its movement. in this direction, the cock 19? isclosed and. the hand 6 is. permittedv to'V coni-pletey its .trave-rse,the gasdischarging` through the small' burner 22. As soonas it hascoinpletled-thistraverse, the cocks: 20 and: 25.- are closed. 'Flic twomeasuring units have: such dimensions that. when the-indicating handV 6"has made atraversein eitherdirection ai certa-indeliniteamount off`gas-'Will lbe discharged from each of the tvv-o indica-ting.- units,such for instance as .one cubic foot making vin lall ten cubic feet tofive tra-verses;- that bein the amount which. isordinarily register-ed:by large sized gas meterslin one revolution of their first hands. If,when. ther handhas' completed the necessary traverses, say five for atenfoot test, the meters to: be tested registers ten feet,` the testshowsthat the meter-to be testediin accurate; H5 however, the meter tobetested registers less than ten* feet, itv shoWsthat-the mete-r'to-be3tested is The use of t-he large discharge ports materiallyshortens thelength of the test; While-1 the independent use of the Sina-lldisch-argey portsenables-d-efects which are only apparent under smallAload to be readily detected and'l it is. suclr defects which are thesource of greatest loss. The gas escaping from: the blueV flame burnersis, of course, ignited in any suitable nia-nner, with the result thatthe: amo-untrofsoot; dep ositedv and unburnedugas discharged isreducedfto ai minimum.v The upper-.unit can be used-separately from thelower unit by disconnectingv the Hag-Wires vat'l the.v cou pling 5.`andi the pipes;-9- anch l2;- atthe= cous plingsl()` and-v luandproperly-f sealing-1vv the lovvfer ends of the-upper portions ofy theper. unit, when. so separated. canz be used :fo-r-v being one of thechief advantages of my construction. The tivo separable units can alsobe separated for the purpose of carrying thein from one point toanother` Which is another ofthe chief advantages of my construction. Mytesting means, therefore, is very flexible, being adapted toy test smallsized meters or large sizedi'neters` and also being easily carried fronione pointto another.

Fig.. 3 shows a modification ofL the two units in which the saineareplaced back: to back7V theinner. chambers being. connected togetherand:l the outer chambers beingcom neet-ed together by pipes 3i and 35,-;pro vided Withicouplings-BG and 37. The inner and outer chambers areprovidedlivith pipes 558-39- connecting them. through the fourway:couplings lta=nd Q3' to pipes acti-ngto eitherfsupplyi ga'sto.` ordischarge gas from the inner and outer chambers of one of said units inthe manner abovey described and hence the innercand outerelliainbersfofr` both of'r saidunits.-v In this :modified arranges nientthe iag Wires have to -be provided with suitable meansl for. cordinatingand indicating their movements and I- have show-n1 a suitable inea-ns`for this purpose`- in Fig. 4, the same consisting of tivo arms 40e-45trigidly connected to the upper=jends of 'the flag Wires lL-5?" and lowerVarmsiZ and 43 pivotallyfv connected to the upper arras and toamoving-indicating' de'vice'vllt4 which slides along a graduated scale i5carried' by the unit toy which the inlet and discharge pipes 38f and 39are connected. In this device also,- the-unitsl can be separated by`disconnectingthev couplingsv and' 37 andy the arm-43- and thenV theleft-hand unit, Y

when' its pipes` 311i andsV 35: aree-closed;- can bey usednindependentlyofthe-f others for testing meters of smalll capacity.

Ther blue flame burners are of the ordi nary type consisting ofv a'shell 46 having an air inlety fl?- andi' aperforated plug 48 theperforation of which is made large or sniall according tov the desiredcapacity.V

The'flag wires 5, of Figs. 1`1and12 are located in: planes which passthrough theI center-sof the sides of the casingsv l andlthe fla-gsA Eare L-shaped as shownv in plan ini Fig. .la with'. the result that'there is a' sid-"e` thrust-a-ndfpullr ofthe flags upon the disks 2' foreach of tlieirvinovements, in either direction,-V the thrust and pullbeing inV sub*- stantially opposite'- directions-5. and each be-` ingofabout one-half: thelength of the thrust that Would# be produced if `thefla'gsfvwerei straight and theV flagi Wires'Were in' the front part ofthey casings: The length'of-y the Inovements of the disks 2 dueto sidethrusts' isV therebyF reduced lsothat ther length ofl their forwardandi'baclnvard movements can be increased Without interfering. withtheac# tion ofi the guide:Wi-resy '5. Thisis-of particular value in mytesting means Where a long throw of the flexible wall is desirable.

As will be evident to those skilled in the art my invention permits ofvarious modiications without departing from the spirit thereof or thescope of the appended claims.

What I claim is:

l. In an apparatus for testing meters, the combination of two separablemeasuring units, an indicator jointly controlled by both of said units,and means for connecting both of said units to the discharge of themeter to be tested and to gas consuming means.

2. In an apparatus for testing meters, the combination of two separablemeasuring units, an indicator jointly controlled by both of said units,and means for connecting both of said units to the discharge of themeter to be tested and to gas consuming means, one of said units beingseparable from said indicator and from said gas supply and gas consumingmeans.

3. In a meter testing apparatus, the combination of two measuring unitsadapted to be placed one on top of the other, two flag wires inline withoneianother and adapted to be connected together between said'measuringunits so as to maintain a fixed angular relation to one another, and anindicator connected to one of said flag wires, a ag in each of saidunits connected to one of said iiag wires, and a flexible wall in eachof said units, dividing the casing thereof into two chambers, said wallbeing connected to the flags within said casings, and means forsupplying gas to the inner chambers of said casings simultaneously anddischarging gas from the outer chambers of said casings, and vice versa.

4. In a meter testing apparatus, the combination of a casing, a ieXiblewall dividing the interior of said casing into two separate chambers, aport opening into each of said chambers, a supply pipe and two dischargedevices having burners connected to said ports respectively, means forconnecting said supply pipe to either of said ports and means forcutting oif the burners of said discharge devices. y

5. In a meter testing apparatus, the combination of a casing, a flexiblewall dividing the interior of said casing into two separate Y chambers,an indicating device actuated by said flexible wall, said chambershaving each a port, means for supplying gas connected to said ports,means for' discharging gas also connected to said ports, and means forcutting off the supply to either port and the discharge from the otherport, without interfering with the supply to said second or dischargefrom said first port.

6. In a meter testing apparatus, the combination of a casing, a flexiblewall dividing the interior of said casing into two separate chambers, anindicating device actuated by said flexible wall, said chambers havingeach a port, three pipes each connected to both of said ports and toeachother and valves in all of said pipes and means for cutting off oneof said pipes from either ot said ports without interfering with itsconnection with Jthe other of said ports, said means simultaneouslycutting off one of the other two plnes from the other port.

7 In a meter testing apparatus, the combination of a casing, a flexiblewall dividing the interior of saidvcasing into two separate chambers, anindicating device actuated by said flexible wall, said chambers havingeach a port, three pipes, eachconnected to both of said ports and toeach other, valves in all of said pipes, and means for 'cutting off oneof said pipes from one of the other pipes and one of said ports or fromthe other of said other pipes and the other of said ports, and gasconsuming means for gas dis- Y charged.

8. In a means fortesting gas meters, the combination of two testingunits composed of casings, each having a movable wall di-V viding itscasing into two separate chambers, each chamber in one of said casingsbeing connected to a chamber in the other casing, and means forcompelling said walls to simultaneously begin and end their movements,an indicator .actuated by such movements, and means for supplying gas toeitherof said chambers and discharging it from the other.

RICHARD LEE Vnnznunoar.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. G.

